Hi Tom, I was speaking with you on another forum and you recomended a venturi for a pool filter style reactor, aquarium plants ext 5000, you said directed into the intake I believe. just became a lifetime member and figured I would ask you on here instead.. I dont quite understand the concept and how I would go about this and what effects it would have on my system as well as any possible problems that would go along with it.. I looked at some of the links you provided on the msg you sent however was still not clear how I would go about this on this style reactor and what effect it would have, how it would work... this is my co2 system, in the future I will be using a different setup but as I spent all the cash I can spend on larger equipment purchases for a while,, so I am lookin to do some modifications to this to allow it to work better.. also a question I have for you, I have been lookin at the large amount of flow on your 180 gallon from posts on plantedtank... I was wondering if you used this high of flow on tanks with alot of stem plants, and if you do doesnt this cause them to always grown at an angle,, should the water be moving in a circular manor or should the flow be just all over the place, maybe that would not cause the stem plants to all lean one way.. as this is somehting I have ran into issues with using high flow... this is my reactor.. you can see the air, N2 or CO2 trapped at top as you said this may be false gas..